Lab Plus Laboratory Grown Diamond
In the rapidly evolving diamond industry, LabPlus is redefining what it means to grow diamonds in the lab — not by replacing nature, but by respecting its geological story and enhancing it through precision engineering.
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Introducing the Hallmark Green Edge: Precision Engineered for LabPlus Diamond Perfection
SLTL’s Hallmark Green Edge is more than a diamond slicing tool — it’s the technological heartbeat of the LabPlus process. Designed to support seed-based lab grown diamond workflows, the Green Edge ensures each crystal is shaped with flawless accuracy, preserving the integrity of its natural-seeded growth.
With a focus on mechanical stability, this cutting-edge machine delivers exceptional slicing and shaping results, while offering intuitive software to streamline productivity in high-throughput environments.
The Green Edge sets itself apart through its green laser source, which emits a finely tuned beam ideal for clean, precise, and waste-free diamond processing. Whether performing vertical slicing, surface calibration, or edge detailing, this machine guarantees each LabPlus Diamond maintains its optical symmetry and internal brilliance — key outcomes required for luxury-grade diamonds.
Designed for manufacturers and labs demanding the highest standards, the Hallmark Green Edge integrates seamlessly with vacuum-controlled environments and Hi-Tech automation. It operates with exceptional consistency, ensuring all critical geometric parameters — angles, depths, and facet planes — are executed with sub-micron accuracy.
Combined with advanced visual monitoring, smart UI, and automated controls, the Green Edge offers a smooth, operator-friendly experience while preserving the structural integrity, light return, and polish potential of every lab grown diamond.
This is where technology meets tradition — enabling LabPlus diamonds to mirror nature’s precision, powered by engineering excellence.
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At the heart of this revolutionary method lies a key difference: unlike traditional CVD techniques that deposit diamond layers onto artificial substrates, Hallmark LabPlus utilizes a natural diamond seed — a remnant of Earth’s billion-year-old crystallization process. By growing new diamond structures directly on top of these natural seeds, the resulting lab-grown diamonds inherit many of the natural micro-traits embedded in the seed itself.
Seed-Based Growth, Not Just Surface Deposition
Unlike standard layer-by-layer CVD which produces clean but overly uniform crystals, the LabPlus system respects the complexity of diamond formation. The process grows upward from a natural seed, producing diamonds with depth, internal architecture, and in some cases, even natural inclusion behavior — not from contamination, but from authentic inheritance.
Airtight Precision: Why Our Process is Unique
Inside the LabPlus system, every growth chamber is:
- Vacuum-sealed to eliminate airborne dust or contaminants
- Filled with purified, filtered gas to prevent microscopic graining
- Designed to prevent the intrusion of metallic particles or carbon clusters that reduce brilliance
This is not just clean-room technology — it’s diamond-safe engineering. By eliminating uncontrolled environmental factors, Hallmark LabPlus ensures each grown diamond achieves exceptional clarity and brilliance, without the flaws of rushed or exposed production.
The Result: A Diamond That Echoes Nature, Enhanced by Technology
LabPlus diamonds are not artificial copies — they are a continuation of Earth’s work, grown with reverence and elevated with engineering. The result is a diamond that not only shines with visible beauty, but also whispers with invisible authenticity.
For brands and jewelers seeking to offer a lab-grown diamond that feels more like a legacy than a lab product, Hallmark LabPlus is the new gold standard.
Beyond Chemical Similarity: Geological Signatures Matter
While conventional lab-grown diamonds are chemically identical to natural diamonds (99.9% carbon purity), they lack the subtle geological fingerprints that define Earth-formed diamonds. These include:
- Mineral Inclusions such as garnet, spinel, or olivine — often absent in synthetic growth
- Metal traces like iron or nickel from the Earth’s mantle
- Grouped nitrogen atoms (Type Ia) — a typical marker in natural diamonds but rare in classic lab methods
- Natural radiation effects, visible in greenish hues in some Earth-formed stones
- Stress patterns and deformation lines, formed over millions of years under tectonic pressure
Hallmark LabPlus allows some of these unique traits to carry through from the seed into the grown diamond. As a result, each diamond carries a geological “continuity” that most synthetic processes strip away.
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